STA8088EXG

Pin description

Doc ID 022725 Rev. 2

15/24

2.9

Port 1 pins

Port 1 consists of a 32-bit bidirectional I/O port. It can be either used as general purpose

input or output port, or configured according to the associated alternate functions.

Table 9.

Port 1 pins

Symbol

I/O Voltage

I/O

Mode

Functions

TFBGA169

P1.0

VDD_IOR1

ODefault

SSP_CSN/iopwrsel_r1: SSP chip select active low

/ I/O ring 1 power selection

J11

I/O

A

GPIO32: general purpose I/O

I/O

B

SignGGPS: GGPS 3bit coding output (Sign)

O

C

SQI_Cen: SQI Flash chip enable

P1.1

VDD_IOR1

I/O

Default SSP_CLK: SSP clock

F11

I/O

A

GPIO33: general purpose I/O

I/O

B

Clock_GGPS: GGPS clock out

O

C

SQI_Clk: SQI Flash clock

P1.2

VDD_IOR1

I

Default SSP_DI: SSP serial data input

H11

I/O

A

GPIO34: general purpose I/O

I/O

B

SignGNS: GNS 3bit coding output (Sign)

I/O

C

SQI_SIO0/SI: SQI Flash data I/O 0 / ser. I

P1.3

VDD_IOR1

O

Default SSP_DO: SSP serial data output

G11

I/O

A

GPIO35: general purpose I/O

I/O

B

Clock_GNS: GNS clock out

I/O

C

SQI_SIO1/SO: SQI Flash data I/O 1 / ser. O

P1.4

VDD_IOR1

I

Default UART2_RX: UART 2 Rx data

K12

I/O

A

GPIO36: general purpose I/O

P1.5

VDD_IOR1

O

Default UART2_TX: UART 2 Tx data / ARM Boot 0

K11

I/O

A

GPIO37: general purpose I/O

P1.6

VDD_IOR1

I

Default UART0_RX: UART 0 Rx data

L13

I/O

A

GPIO38: general purpose I/O

I/O

C

SQI_SIO2: SQI Flash data I/O 2

P1.7

VDD_IOR1

O

Default UART0_TX: UART 0 Tx data / ARM Boot 1

K13

I/O

A

GPIO39: general purpose I/O

I/O

C

SQI_SIO3: SQI Flash data I/O 3

P1.8

VDD_IOR3

O

Default FSMC_Add0: FSMC EMI address bus 0

F7

I/O

A

GPIO40: general purpose I/O